Vive Cosmos OpenXR + OpenGL crashes with Memory Acces Violation

Courgeon · October 10, 2022

Hello,

I'm trying to use the Cosmos with our OpenGL engine (c# based), and using OpenXR.

We have beeing using Steam OpenVR API for a while, but I'd like to use the Alpha Blend mode using Vive OpenXR.

I managed to implement OpenXR in our engine, it works well with Oculus OpenXR (quest 2 + link), and with Steam OpenXR + Vive Cosmos. However, using the Vive OpenXR implementation as target, xrEndFrame crashes with

System.AccessViolationException
HResult=0x80004003
Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

Any idea what's going on ?

M.

KyleC · October 11, 2022

Hi @Courgeon,

Since we cannot reproduce this issue when running "HelloXR-OpenGL-Alpha Blend mode" on VIVE Cosmos with VIVE OpenXR, some more information might help us to support you furthermore:

1. Provide your testing App if it is possible.

2. Provide the logs: Settings -> Trouble Shooting -> Report Issue. And provide the report number.

Thanks.

Courgeon · October 11, 2022

Unfortunatly, I cannot share the engine source code.

May I have a link to the "HelloXR-OpenGL-Alpha Blend mode" exemple ?

regarding the second point, I don't understand what "report number" you are expecting.

Thank you

M.

Courgeon · October 11, 2022

If it can help here is the complete log of the XR calls

Verbose [GENERAL | xrEnumerateInstanceExtensionProperties | OpenXR-Loader] : Entering loader trampoline
Info [GENERAL |  | OpenXR-Loader] : RuntimeManifestFile::FindManifestFiles - using registry-specified runtime file C:\Program Files (x86)\VIVE\Updater\App\ViveVRRuntime\ViveVR_openxr\ViveOpenXR.json
Info [GENERAL |  | OpenXR-Loader] : RuntimeManifestFile::CreateIfValid - attempting to load C:\Program Files (x86)\VIVE\Updater\App\ViveVRRuntime\ViveVR_openxr\ViveOpenXR.json
Info [GENERAL | xrEnumerateInstanceExtensionProperties | OpenXR-Loader] : RuntimeInterface::LoadRuntime succeeded loading runtime defined in manifest file C:\Program Files (x86)\VIVE\Updater\App\ViveVRRuntime\ViveVR_openxr\ViveOpenXR.json using interface version 1 and OpenXR API version 1.0
Verbose [GENERAL | xrEnumerateInstanceExtensionProperties | OpenXR-Loader] : Completed loader trampoline
Enumerate number of extension properties : Success
Verbose [GENERAL | xrEnumerateInstanceExtensionProperties | OpenXR-Loader] : Entering loader trampoline
Verbose [GENERAL | xrEnumerateInstanceExtensionProperties | OpenXR-Loader] : Completed loader trampoline
Enumerate extension properties : Success
XR Runtime supports 19 extensions
  >> XR_EXT_hand_tracking  (version  2)
  >> XR_EXT_eye_gaze_interaction  (version  1)
  >> XR_HTC_facial_tracking  (version  1)
  >> XR_HTC_vive_srworks_pass_through  (version  1)
  >> XR_MSFT_scene_understanding  (version  1)
  >> XR_KHR_D3D11_enable  (version  9)
  >> XR_KHR_D3D12_enable  (version  9)
  >> XR_KHR_win32_convert_performance_counter_time  (version  1)
  >> XR_KHR_visibility_mask  (version  2)
  >> XR_HTC_vive_cosmos_controller_interaction  (version  1)
  >> XR_KHR_opengl_enable  (version  10)
  >> XR_KHR_vulkan_enable  (version  8)
  >> XR_KHR_vulkan_enable2  (version  2)
  >> XR_EXT_debug_utils  (version  4)
  >> XR_KHR_convert_timespec_time  (version  1)
  >> XR_KHR_composition_layer_depth  (version  6)
  >> XR_FB_passthrough  (version  3)
  >> XR_FB_triangle_mesh  (version  2)
  >> XR_EXT_win32_appcontainer_compatible  (version  1)
Verbose [GENERAL | xrCreateInstance | OpenXR-Loader] : Entering loader trampoline
Warning [GENERAL |  | OpenXR-Loader] : ReadLayerDataFilesInRegistry - failed to read registry location \ApiLayers\Explicit in either HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Info [GENERAL | xrCreateInstance | OpenXR-Loader] : ApiLayerInterface::LoadApiLayers succeeded loading layer XR_APILAYER_VIVE_hand_tracking using interface version 1 and OpenXR API version 1.0
Info [GENERAL | xrCreateInstance | OpenXR-Loader] : ApiLayerInterface::LoadApiLayers succeeded loading layer XR_APILAYER_VIVE_facial_tracking using interface version 1 and OpenXR API version 1.0
Info [GENERAL | xrCreateInstance | OpenXR-Loader] : ApiLayerInterface::LoadApiLayers succeeded loading layer XR_APILAYER_VIVE_srworks using interface version 1 and OpenXR API version 1.0
Verbose [GENERAL | xrCreateInstance | OpenXR-Loader] : Entering LoaderInstance::CreateInstance
Verbose [GENERAL | xrCreateInstance | OpenXR-Loader] : Entering loader terminator
Verbose [GENERAL | xrCreateInstance | OpenXR-Loader] : Completed loader terminator
Info [GENERAL | xrCreateInstance | OpenXR-Loader] : LoaderInstance::CreateInstance succeeded with 3 layers enabled and runtime interface - created instance = 0x00000248ff495250
Verbose [GENERAL | xrCreateInstance | OpenXR-Loader] : Completed loader trampoline
Create XR instance : Success

Get OpenGL graphics requirements function : Success
Get XR instance info : Success
Runtime Name: Vive Reality Runtime
Runtime Version: 0.0.1
Get system for HMD form factor : Success
Successfully got XrSystem with id 1 for HMD form factor
Get System properties : Success
System properties for system 1
      Name                        : Vive OpenXR: Vive SRanipalcking
      VendorId                    : 2996
      Max Layers                  : 0
      Max swapchain height        : 0
      Max swapchain width         : 0
      Orientation Tracking        : 0
      Position tracking           : 0
Get view configuration view count : Success
Enumerate view configuration views : Success
View Configuration View :0
        Resolution          :
                Recommended       : 2757 x 3256
                Maximum           : 2757 x 3256
        Swapchain Samples   :
                Recommended       : 1
                Maximum           : 1
View Configuration View :1
        Resolution          :
                Recommended       : 2757 x 3256
                Maximum           : 2757 x 3256
        Swapchain Samples   :
                Recommended       : 1
                Maximum           : 1
Get OpenGL graphics requirements : Success
OpenGL Support :
                Minimum version       : 4.3.0
                Maximum version       : 4.6.1023
Using OpenGL version: 4.6.0 NVIDIA 517.48
Using OpenGL Renderer: NVIDIA GeForce RTX 3070 Ti/PCIe/SSE2
Create XR session : Success
Successfully created a session with OpenGL!

Create play space : Success
Get number of supported color swapchain formats : Success
Runtime supports 3 color  swapchain formats
Enumerate color  swapchain formats : Success
Supported GL color  format: Rgba8
Supported GL color  format: Srgb8Alpha8
Supported GL color  format: DepthComponent16Sgix
> Using preferred color  swapchain format Srgb8Alpha8
Get number of supported depth swapchain formats : Success
Runtime supports 3 depth  swapchain formats
Enumerate depth  swapchain formats : Success
Supported GL depth  format: Rgba8
Supported GL depth  format: Srgb8Alpha8
Supported GL depth  format: DepthComponent16Sgix
> Using preferred depth  swapchain format DepthComponent16Sgix
Create swapchain 0 : Success
Enumerate swapchains : Success
Enumerate swapchain images : Success
Create swapchain 1 : Success
Enumerate swapchains : Success
Enumerate swapchain images : Success
Create depth swapchain 0 : Success
Enumerate depth swapchains : Success
Enumerate depth swapchain images : Success
Create depth swapchain 1 : Success
Enumerate depth swapchains : Success
Enumerate depth swapchain images : Success
Create ActionSet : Success
Create hand pose action : Success
Create hand 0 pose space : Success
Create hand 1 pose space : Success
Attach action set : Success

Init scene loading

Scene loaded
Poll XR events : Success
Begin session : Success
Waiting for XR frame ready
XR wait frame ok
Wait XR frame : Success
Locate views : Success
Sync actions : SessionNotFocused
Begin frame : Success
fAcquire swapchain image : Success
Wait for swapchain image : Success
Acquire depth swapchain image : Success
Wait for depth swapchain image : Success
Using on left eye :
    Color : 0  ImageID : 1
    Depth : 0  ImageID : 7
Release swapchain image : Success
Release swapchain depth image : Success
fAcquire swapchain image : Success
Wait for swapchain image : Success
Acquire depth swapchain image : Success
Wait for depth swapchain image : Success
Using on right eye :
    Color : 0  ImageID : 4
    Depth : 0  ImageID : 10
Release swapchain image : Success
Release swapchain depth image : Success
Fatal error. System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
   at Silk.NET.OpenXR.XR.EndFrame(Silk.NET.OpenXR.Session, Silk.NET.OpenXR.FrameEndInfo*)
   at EGL.core.openxr.XR_Manager.EndFrame()
   at EGL.core.openxr.XR_Manager+<>c__DisplayClass54_0.<getRenderPassRight>b__1()
   at EGL.core.renderer.EGL_Renderpass+<>c.<doRender>b__29_1(System.Action)
   at System.Collections.Generic.List`1[[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].ForEach(System.Action`1<System.__Canon>)
   at EGL.core.renderer.EGL_Renderpass.doRender()
   at EGL.core.engine.EGL_Engine+<>c.<_initRenderProcess>b__71_4(EGL.core.renderer.EGL_Renderpass)
   at System.Collections.Generic.List`1[[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].ForEach(System.Action`1<System.__Canon>)
   at EGL.core.engine.EGL_Engine+<>c__DisplayClass71_0.<_initRenderProcess>b__0()
   at System.Threading.Thread.StartCallback()

Courgeon · October 11, 2022

I found something quite interresting

All the examples I used as base were linking the depthInfo (XrCompositionLayerDepthInfoKHR) to the projection_views (XrCompositionLayerProjectionView) using the "next" pointer

// depth is chained to projection, not submitted as separate layer

projection_views[i].next = &depth.infos[i];

However, It seems that the Vive OpenXR runtime does not allow that and crashes.

I just set next to null, and now it works.

KyleC · October 13, 2022

Thanks for pointing it out.

We do support this depth in the next pointer, but somehow it crashed.

Did you try our Beta? There might be a fix related to this issue.

And currently our runtime does not take OpenGL depth texture to perform anything, but App still can submit it.

Courgeon · October 13, 2022

Hi,

I'm already running the lastest beta version 2.0.21.4

Vive Cosmos OpenXR + OpenGL crashes with Memory Acces Violation

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